| 摘要 |
PURPOSE:To constitute the manufacture so that a long-sized open-cell foam where the skin and a foam are unified completely, it is free from creases and unevenness and its surface is smooth and favorable can be obtained easily and at favorable productivity, by a method wherein at the time of lamination of a skin film to the open-cell foam, foaming is performed after the skin film is fused thermally to a foamable sheet beforehand. CONSTITUTION:A composition for an open-cell foam containing olefin resin and a foaming resin is molded in a sheetlike state, one side is pressure-contacted to a substrate surface having a smooth surface and then the same is foamed by heating the same at the decomposition temperature or higher. A pellet is molded into a sheet whose thickness is 0.5mm and width is 500mm by making use of 50mm extruding machine and introduced continuously into a foaming machine having an endless belt 4 made of polytetrafluoroethylene and a heating furnace 7. In this instance, simultaneously with the above, a film 5 made of ethylene-vinyl acetate copolymer resin whose thickness is 0.1mm and width is 600mm is fed between a press roll 6 and the foamable sheet 2, passed through a heating furnace 7, whose atmospheric temperature is 200 deg.C, while pinching continuously and foaming is performed. |
